Abstract: Techniques described herein relate to tracking and analyzing digital credential usage in sensor-monitored environments. A digital credential platform server may receive data identifying credential receivers, and then retrieve the digital credentials generated and issued to the credential receivers. The digital credential platform server may then determine sets of physical activities associated with the digital credentials issued to a credential receiver, and may use sensor-based monitoring systems to detect the user actions of the credential receiver and compare those actions to the physical activities associated with the credentials. Comparisons between the user actions detected for the credential receiver, and the physical activities associated with the receiver's credentials, may be used to determine re-credentialing time periods, credential expiration times, and the like.

Abstract: A fan coil unit comprising an air conditioning coil using a main cooling coil surrounding by a heat pipe. The cooling coil is face-split to form a first portion for conditioning inside air, as needed, and second portion for continuously conditioning outside air. The air conditioning coil is positioned between an pre-cooler or evaporator coil and a re-heater or condenser coil. The pre-cooler and re-heater are comprised of a plurality of passive heat pipes, at least one circuit for each of the first and second portions of the face-split cooling coil. Each of the circuits is a continuous length of pipe folded into a C-shape having a crossover end and a hair pin end. In this way, vapor can rise in the upper portion of the pre-cooler side, through the upper crossover pipe, to the re-heater side.

Abstract: This invention provides a biphasic shuttle vector capable replication and expression of foreign genetic information in Escherichia coli and Agmenellum quadruplicatum comprising an E. coli replicon, an A. quadruplicatum replicon, at least two selectable markers and a promoter derived from A. quadruplicatum. The invention further provides an ectopic mutant of Agmenellum quadruplicatum PR-6 characterized by displaying less AquI interference with unmodified plasmids than the PR-6 strain.